Cardiff, United Kingdom 14-Day Forecast

58°
Overcast right now Today: high 72°, low 58°
Updated 5 hours ago

Cardiff weather for the next 14 days

Today

Overcast High 72° Low 58°
Precipitation
35% · 0.01 in
19 mph
5 - Moderate
Sunrise / sunset
06:03 AM / 08:29 PM

Wednesday, August 19

Patchy rain nearby High 69° Low 54°
Precipitation
57% · 0.06 in
Max wind
20 mph
Humidity
76%
UV index
5 - Moderate
Sunrise / sunset
06:05 AM / 08:27 PM

Thursday, August 20

Patchy rain nearby High 67° Low 52°
Precipitation
51% · 0.03 in
Max wind
14 mph
Humidity
75%
UV index
4 - Moderate
Sunrise / sunset
06:06 AM / 08:25 PM

Friday, August 21

Sunny High 68° Low 48°
Precipitation
38% · 0.03 in
Max wind
12 mph
Humidity
65%
UV index
5 - Moderate
Sunrise / sunset
06:08 AM / 08:23 PM

Saturday, August 22

Overcast High 70° Low 51°
Precipitation
14% · 0.0 in
Max wind
9 mph
Humidity
60%
UV index
5 - Moderate
Sunrise / sunset
06:09 AM / 08:21 PM

Sunday, August 23

Overcast High 74° Low 50°
Precipitation
6% · 0.0 in
Max wind
11 mph
Humidity
49%
UV index
6 - High
Sunrise / sunset
06:11 AM / 08:19 PM

Monday, August 24

Overcast High 70° Low 52°
Precipitation
12% · 0.0 in
Max wind
20 mph
Humidity
56%
UV index
5 - Moderate
Sunrise / sunset
06:12 AM / 08:17 PM

Tuesday, August 25

Sunny High 71° Low 54°
Precipitation
5% · 0.0 in
Max wind
11 mph
Humidity
58%
UV index
6 - High
Sunrise / sunset
06:14 AM / 08:15 PM

Wednesday, August 26

Overcast High 66° Low 51°
Precipitation
81% · 0.2 in
Max wind
14 mph
Humidity
81%
UV index
4 - Moderate
Sunrise / sunset
06:16 AM / 08:12 PM

Thursday, August 27

Patchy rain nearby High 69° Low 55°
Precipitation
43% · 0.01 in
Max wind
17 mph
Humidity
76%
UV index
5 - Moderate
Sunrise / sunset
06:17 AM / 08:10 PM

Friday, August 28

Light rain shower High 70° Low 57°
Precipitation
91% · 0.48 in
Max wind
17 mph
Humidity
89%
UV index
5 - Moderate
Sunrise / sunset
06:19 AM / 08:08 PM

Saturday, August 29

Patchy rain nearby High 64° Low 55°
Precipitation
69% · 0.09 in
Max wind
18 mph
Humidity
79%
UV index
5 - Moderate
Sunrise / sunset
06:20 AM / 08:06 PM

Sunday, August 30

Patchy rain nearby High 63° Low 51°
Precipitation
59% · 0.07 in
Max wind
16 mph
Humidity
75%
UV index
5 - Moderate
Sunrise / sunset
06:22 AM / 08:04 PM

Monday, August 31

Patchy rain nearby High 64° Low 50°
Precipitation
26% · 0.0 in
Max wind
15 mph
Humidity
73%
UV index
4 - Moderate
Sunrise / sunset
06:24 AM / 08:02 PM

Cardiff 14-day outlook: the story

The warmest day of Cardiff's 14-day outlook is Sunday, August 23 with a high near 74°F (24°C); the coolest night comes Friday, August 21, dipping to 48°F (9°C). The trend points cooler: week two runs about 3°F below week one. Highs over the next two weeks average 70°F (21°C), right in line with the typical August high of 68°F (20°C).

Precipitation is most likely on Wednesday 19, Thursday 20, Wednesday 26, Friday 28 and beyond; the wettest day looks like Friday, August 28 with about 0.48 in (12.1 mm) expected. For the weekend, expect Saturday 70°F (21°C) and overcast / Sunday 74°F (24°C) and overcast.

For typical conditions month by month, see the Cardiff climate & average temperatures guide.

Cardiff forecast questions

Will it rain in Cardiff this week?
The forecast currently shows meaningful precipitation chances on 6 of the next 14 days, peaking around Friday, August 28.
What will be the warmest day in Cardiff over the next 14 days?
Sunday, August 23, with a forecast high near 74°F (24°C).
How accurate is a 14-day forecast for Cardiff?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.

Average temperatures in Cardiff by month

Monthly averages for Cardiff based on 2015–2024 weather data.
MonthHighLow Rain daysPrecipitation SunshineHumidity
January 46° 37° 15 4.0 in 4.1 h/day 87%
February 48° 38° 14 4.2 in 5.3 h/day 84%
March 50° 39° 16 4.2 in 6.9 h/day 81%
April 55° 41° 11 2.6 in 9.8 h/day 76%
May 61° 47° 12 3.3 in 11.1 h/day 77%
June 66° 53° 12 2.6 in 11.7 h/day 76%
July 69° 56° 15 3.4 in 11.4 h/day 77%
August 68° 56° 15 4.0 in 10.0 h/day 80%
September 64° 53° 13 4.1 in 8.5 h/day 82%
October 58° 48° 16 5.4 in 6.3 h/day 84%
November 51° 43° 15 4.4 in 4.4 h/day 87%
December 49° 41° 17 5.6 in 3.3 h/day 89%
14-day forecasts nearby